1999 Audi A4 Wheel Interchange

1999 Audi A4 Wheel Fitment Guide | wheelinterchange.com

Known OEM Fitment For 1999 Audi A4

The specifications below reflect the known factory wheel and tire fitment for the listed year, make, and model. If a detail on your trim differs, confirm it with your VIN, the on-page calculator, and OEM documentation before buying parts.

Notes:

• Audi commonly uses hub-centric wheels. Aftermarket wheels typically have a larger center bore and require hub-centric rings sized to 57.1 mm to be truly hub-centric on this vehicle.
• Lug hardware on many Audi models is a lug bolt rather than a lug nut. Always match seat style to the wheel design, and verify thread size M14 x 1.5.

How To Use The Wheel Interchange Calculator

The calculator on wheelinterchange.com lets you compare a donor setup to your car and test custom wheel and tire sizes. Follow these steps:

• Set Installed on your vehicle to 1999 Audi A4. Enter the OEM baseline: 15x6.0 ET45 with 195/65R15 tires. This anchors the comparison.
• For Wheels from donor vehicle, enter the other wheel’s bolt pattern and specs or switch to Custom wheel size to try different rim width, diameter, and offset.
• Adjust Custom tire size to keep overall tire diameter close to stock. The tool updates tire diameter as you change rim diameter, so you can keep speedometer and ABS happy.
• Review these outputs:
  • Inner clearance change vs strut and control arms.
  • Outer poke change vs fender lip.
  • Ride height and speedometer change from tire diameter.
• Target an overall tire diameter within about 2 percent of stock for best results. Larger changes may affect gearing, speedometer, and electronic aids.

Fitment Checklist Before You Buy

• Bolt pattern: Must be 5x112. Adapters change geometry and require careful selection and longer hardware if used.
• Center bore: Wheel must be 57.1 mm or larger. If larger, use hub-centric rings to 57.1 mm so the wheel centers properly.
• Offset and width: Use the calculator to ensure inner clearance to struts and outer clearance to fenders. Watch for brake caliper spoke clearance and barrel clearance.
• Tire diameter: Keep close to stock. Too tall can rub fenders. Too short lowers the car and alters speedometer.
• Brake clearance: Physically test-fit for caliper and rotor hat clearance, especially with smaller spoke pockets or smaller barrel drop centers.
• Hardware: Confirm M14 x 1.5 thread and correct seat type for the wheel. Ensure full thread engagement and that the bolt or nut does not bottom out.
• Hub face prep: Remove rust and debris. A dirty hub can cause runout and vibration.
• Spacers: If required for spoke or strut clearance, use hub-centric spacers and matching extended hardware. Recheck fender clearance after spacing out.
• Load rating: Wheels and tires must meet or exceed vehicle GAWR. Check the sidewall and wheel documentation.
• If your car is AWD, keep front and rear rolling diameters matched to protect the drivetrain.

Plus Sizing And Common Upgrades

Owners often explore plus sizing to 16 or 17 inch wheels for tire availability and handling. Clearance depends on trim, suspension, and brakes, so verify using the calculator and a physical test-fit on your car.

• Plus 1 example to try in the calculator: 16 inch wheels with a tire such as 205/55R16. Compare inner clearance and outer poke against the 15x6.0 ET45 baseline.
• Plus 2 example to try in the calculator: 17 inch wheels with a tire such as 225/45R17. Confirm fender and strut clearance and keep overall diameter close to stock.
• If you widen the wheel, you typically need to fine-tune offset. The calculator will show how much the wheel moves inboard and outboard so you can avoid rubbing.
• For winter setups, many prefer narrower tires on the stock diameter for better snow traction. Verify brake clearance if changing wheel design.

Do not assume a size is compatible just because it fits a different trim or donor vehicle. Always confirm with the calculator and an on-car test.

Installation Tips

• Clean the hub face and the wheel mounting pad. Lightly brush with a wire brush and wipe clean.
• If using hub-centric rings, seat them fully in the wheel bore before mounting.
• Hand start all lug bolts to avoid cross-threading. Tighten in a star pattern in stages.
• Use a calibrated torque wrench and follow the factory service manual for the correct torque spec for your specific trim.
• Spin the wheel by hand to verify brake and suspension clearance before lowering the vehicle.
• After 50 to 100 miles, recheck torque and inspect for any rubbing marks on liners or fender lips.
• Set tire pressures to the door placard values unless your tire manufacturer specifies otherwise for your load and speed rating.

Tools And Helpful Supplies

• 1/2 inch torque wrench: Shop options
• M14 x 1.5 wheel bolts, correct seat for your wheel: Shop options
• Hub-centric rings 57.1 mm ID: Shop options
• Tire pressure gauge: Shop options

FAQs

• Can I use a wheel with a different center bore?

  Yes if the wheel bore is larger than 57.1 mm and you install hub-centric rings to 57.1 mm. A smaller bore will not fit without machining, which is not recommended for safety reasons.

• Will 18 inch wheels fit my 1999 Audi A4?

  It depends on width, offset, tire size, and your specific brakes and suspension. Use the calculator to model clearance and keep tire diameter close to stock, then test-fit to confirm brake and fender clearance.

• Can I run wheels from another brand that are 5x112?

  Possibly, but you must also match or adapt the center bore to 57.1 mm, verify offset and width for clearance, and use the correct M14 x 1.5 hardware with the proper seat type. Always test-fit.

• Do I need spacers for aftermarket wheels?

  Only if you lack caliper or strut clearance. If spacers are used, choose hub-centric spacers and the correct extended M14 x 1.5 bolts. Recalculate outer poke to ensure you do not create fender rub.

• What is the correct lug bolt torque?

  Torque varies by trim and wheel type. Refer to the owner’s manual or factory service information for your exact vehicle and wheel. Always use a torque wrench and recheck after the first 50 to 100 miles.

• Is staggered fitment OK?

  If your A4 is AWD, keep rolling diameters equal front to rear to protect the drivetrain. Widths can vary if clearances are verified, but tire diameters must match closely.

• Why does my car vibrate after new wheels?

  Common causes are missing or incorrect hub-centric rings, improper torque, debris on the hub face, or wheels that are out of balance. Verify ring size 57.1 mm ID and have the wheels balanced.